/*
 * Created on Oct 14, 2010
 * Created by Paul Gardner
 * 
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License only.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 */

package com.aelitis.azureus.core.networkmanager;

import java.net.InetSocketAddress;
import java.util.HashMap;
import java.util.Map;

import com.aelitis.azureus.core.networkmanager.impl.tcp.ProtocolEndpointTCP;
import com.aelitis.azureus.core.networkmanager.impl.udp.ProtocolEndpointUDP;

public class ProtocolEndpointFactory {
    private static ProtocolEndpointHandler tcp_handler = null;
    private static ProtocolEndpointHandler udp_handler = null;

    private static Map<Integer, ProtocolEndpointHandler> other_handlers = new HashMap<Integer, ProtocolEndpointHandler>();

    static {
        ProtocolEndpointTCP.register();
        ProtocolEndpointUDP.register();
    }

    public static void registerHandler(ProtocolEndpointHandler handler) {
        int type = handler.getType();

        if (type == ProtocolEndpoint.PROTOCOL_TCP) {

            tcp_handler = handler;

        } else if (type == ProtocolEndpoint.PROTOCOL_UDP) {

            udp_handler = handler;

        } else {

            other_handlers.put(type, handler);
        }
    }

    public static boolean isHandlerRegistered(int type) {
        if (type == ProtocolEndpoint.PROTOCOL_TCP || type == ProtocolEndpoint.PROTOCOL_UDP) {

            return (true);

        } else {

            return (other_handlers.containsKey(type));
        }
    }

    public static ProtocolEndpoint createEndpoint(int type, InetSocketAddress target) {
        switch (type) {
            case ProtocolEndpoint.PROTOCOL_TCP: {
                return (tcp_handler.create(target));
            }
            case ProtocolEndpoint.PROTOCOL_UDP: {
                return (udp_handler.create(target));
            }
            default: {
                ProtocolEndpointHandler handler = other_handlers.get(type);
                if (handler != null) {
                    return (handler.create(target));
                }
                return (null);
            }
        }
    }

    public static ProtocolEndpoint createEndpoint(int type, ConnectionEndpoint connection_endpoint, InetSocketAddress target) {
        switch (type) {
            case ProtocolEndpoint.PROTOCOL_TCP: {
                return (tcp_handler.create(connection_endpoint, target));
            }
            case ProtocolEndpoint.PROTOCOL_UDP: {
                return (udp_handler.create(connection_endpoint, target));
            }
            default: {
                ProtocolEndpointHandler handler = other_handlers.get(type);
                if (handler != null) {
                    return (handler.create(connection_endpoint, target));
                }
                return (null);
            }
        }
    }
}
